| 摘要 |
A thermostat sensing element is held, in a zone not subjected directly to the thermal action of the burner, in a starting position from which it is moved, by contact with the vessel to be heated as this vessel is placed in position on the burner, into a working position in which it is pushed firmly against the vessel by a spring. The sensing element can be moved upwardly, by pivoting about a horizontal axis, into a retracted position to facilitate cleaning of the burner; this upward retraction can be controlled manually from a handle. In a particular embodiment, the sensing element can be retracted laterally, either as well as or instead of the upward retraction, and this lateral retraction can be controlled manually from a knob. |
